This code snippet is reading camera picture Exif metadata using ExifInterface: Apparently, one particular picture has no or invalid datetime and .getDateTime() is returning null. In the code I assign it to a long, dt, and that results in the exception that is shown below. Of course, if I un-comment the null-c…
Tag: exception
Why is the following code showing twice the statements inside try block inside the loop?
Following is the program for reversing a word using a stack. There is no problem in implementation of stack. It is executing finely. When ctrl-c is pressed, it prints the content of try-catch block twice or even thrice. What causes this? One thing to notice here is if I put break (just remove two forward slas…
How is the count of method executions that triggers the omitted exception stack frames calculated in JDK 8?
JDK version: If we write the following code: Part of the output is: That is, the stack frame is no longer printed after the exception occurs 21124 times. Let’s make a small change to the above code, pay attention to the parameters of the nextInt method: Part of the output is: That is, the stack frame is…
i am getting a java.lang.NullPointerException while executing the testng script
while running the code i am getting this java.lang.NullPointerException in chrome, i have extended the main login class to another and its showing this exception. i have extended the same main class to another diff class and its successfully running but only this class is showing error. here is the code //log…
Why list.contains(null) throwing null pointer exception?
I have List<Long> countriesList which contains Long values which are country ids. Now I am iterating over some List<UserRequests> list by using streams. I tried to debug by evaluating individual statements. I have made sure countriesList have some data First part CollectionUtils.isNotEmpty(countri…
Java – code will always throw a Null Pointer Exception when no Property is present?
I have inherited the following java code, that gets the value of a property from a properties file: The intended behavior in the above flow is that personName will either be retrieved from the properties file or will be returned as null if its not there, and handled accordingly. However when the property is n…
java.lang.ExceptionInInitializerError when running flutter release mode
My flutter app works fine in debug mode. But, when I run it with flutter run –release I am getting the following error. I’ve tried some ways like upgrading gradle, upgrading some dependencies to latest versions. But still it’s not solved. Can you give any ideas on how to solve this? Answer I…
Can you change the Type of Java Exception’s error message?
I’m writing an Internal-Facing tool with a very slow runtime. Because of this runtime I’m trying to validate the input for errors and send a JSON object with a detailed list of every missing or failing element to the client before actually running the tool. I was wondering if there was a way to mo…
Does an unhandled runtime exception crash the whole server?
Will an unhandled runtime exception stop the whole server (i.e. Spring Boot application) or just the specific HTTP request ? It is true that an unhandled runtime exception will instantly shut down normal Java application, right ? Answer Will an unhandled runtime exception stop the whole server (i.e. Spring Bo…
Stop ExecutorService on thread failure and exception handling
This is a simplified example I did to expose my problem. I have some task doSomeWork() that I handle in a multihreading fashion using ExecutorService (4 threads at a time max). However, if any of the threads/tasks generates an exception, I would like to: Stop any further tasks from being processed. Catch the …